neon: Fix opening app from shortcut

packages/neon/lib/src/app.dart

@@ -255,7 +255,7 @@ class _NeonAppState extends State<NeonApp> with WidgetsBindingObserver, tray.Tra
   }
 
   Future _openAppFromExternal(final Account account, final String id) async {
-    _accountsBloc.getAppsBloc(account).setActiveApp(id);
+    await _accountsBloc.getAppsBloc(account).setActiveApp(id);
     _navigatorKey.currentState!.popUntil((final route) => route.settings.name == 'home');
     await _showAndRestoreWindow();
   }

packages/neon/lib/src/apps/notifications/pages/main.dart

@@ -94,7 +94,7 @@ class _NotificationsMainPageState extends State<NotificationsMainPage> {
         final matchingAppImplementations = allAppImplementations.where((final a) => a.id == notification.app);
         if (matchingAppImplementations.isNotEmpty) {
           final accountsBloc = Provider.of<AccountsBloc>(context, listen: false);
-          accountsBloc.getAppsBloc(accountsBloc.activeAccount.value!).setActiveApp(notification.app);
+          await accountsBloc.getAppsBloc(accountsBloc.activeAccount.value!).setActiveApp(notification.app);
         } else {
           await showDialog(
             context: context,

packages/neon/lib/src/blocs/apps.dart

@@ -44,7 +44,7 @@ class AppsBloc extends InteractiveBloc implements AppsBlocEvents, AppsBlocStates
               }
             }
             if (!activeAppID.hasValue) {
-              setActiveApp(initialApp);
+              await setActiveApp(initialApp);
             }
           }),
         );
@@ -119,8 +119,11 @@ class AppsBloc extends InteractiveBloc implements AppsBlocEvents, AppsBlocStates
   }
 
   @override
-  void setActiveApp(final String? appID) {
-    if (appImplementations.value.data!.where((final app) => app.id == appID).isNotEmpty) {
+  Future setActiveApp(final String? appID) async {
+    if ((await appImplementations.firstWhere((final a) => a.data != null))
+        .data!
+        .where((final app) => app.id == appID)
+        .isNotEmpty) {
       if (activeAppID.valueOrNull != appID) {
         activeAppID.add(appID);
       }

packages/neon/lib/src/pages/home.dart

@@ -321,8 +321,8 @@ class _HomePageState extends State<HomePage> {
                                                   return Tooltip(
                                                     message: appImplementation.name(context),
                                                     child: IconButton(
-                                                      onPressed: () {
-                                                        _appsBloc.setActiveApp(appImplementation.id);
+                                                      onPressed: () async {
+                                                        await _appsBloc.setActiveApp(appImplementation.id);
                                                       },
                                                       icon: AppImplementationIcon(
                                                         appImplementation: appImplementation,
@@ -352,10 +352,13 @@ class _HomePageState extends State<HomePage> {
                                                   ),
                                                   leading: appImplementation.buildIcon(context),
                                                   minLeadingWidth: 0,
-                                                  onTap: () {
-                                                    _appsBloc.setActiveApp(appImplementation.id);
+                                                  onTap: () async {
+                                                    await _appsBloc.setActiveApp(appImplementation.id);
                                                     if (navigationMode == NavigationMode.drawer) {
                                                       // Don't pop when the drawer is always shown
+                                                      if (!mounted) {
+                                                        return;
+                                                      }
                                                       Navigator.of(context).pop();
                                                     }
                                                   },